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61a14fcea0
The `feature_detect` module is currently being built on all targets, but
the use of `AtomicU32` causes a problem if atomics are not available
(such as with `bpfel-unknown-none`). Gate this module behind
`target_has_atomic = "ptr"`.
The below now completes successfully:
cargo build -p compiler_builtins --target=bpfel-unknown-none -Z build-std=core
Fixes: https://github.com/rust-lang/compiler-builtins/issues/908
compiler-builtins and libm
This repository contains two main crates:
compiler-builtins: symbols that the compiler expects to be available at link timelibm: a Rust implementation of C math libraries, used to provide implementations inocre.
More details are at compiler-builtins/README.md and libm/README.md.
For instructions on contributing, see CONTRIBUTING.md.
License
libmmay be used under the MIT Licensecompiler-builtinsmay be used under the MIT License and the Apache License, Version 2.0 with the LLVM exception.- All original contributions must be under all of: the MIT license, the Apache-2.0 license, and the Apache-2.0 license with the LLVM exception.
More details are in LICENSE.txt and libm/LICENSE.txt.